Life as We Know It or Life as We Knew It may refer to: Life, as we know it on Earth, as described using standard biochemistry Life as We Know It (film), a 2010 romantic comedy film directed by Greg Berlanti Life as We Know It (TV series), a 2004 American television drama Life as We Know It (REO Speedwagon album), 1987 Life as We Know It (Lonestar album), 2013, or the title track Life as We Know It (EP), by American Alternative rock band Wild Colonials "Life as We Knew It" (song), 1989 single by Kathy Mattea Life as We Knew It (novel), science fiction novel by Susan Beth Pfeffer See also Life as we don't know it, hypothetical types of biochemistry possibly present elsewhere in the Universe